From: Dipendra Khadka Date: Thu, 17 Oct 2024 18:56:33 +0000 (+0000) Subject: octeontx2-pf: handle otx2_mbox_get_rsp errors in otx2_common.c X-Git-Tag: v6.13-rc1~135^2~251 X-Git-Url: https://git.kernel.dk/?a=commitdiff_plain;h=0fbc7a5027c6f7f2c785adae3dcec22b2f2b69b3;p=linux-block.git octeontx2-pf: handle otx2_mbox_get_rsp errors in otx2_common.c Add error pointer check after calling otx2_mbox_get_rsp(). Fixes: ab58a416c93f ("octeontx2-pf: cn10k: Get max mtu supported from admin function") Signed-off-by: Dipendra Khadka Reviewed-by: Simon Horman Signed-off-by: Andrew Lunn --- diff --git a/drivers/net/ethernet/marvell/octeontx2/nic/otx2_common.c b/drivers/net/ethernet/marvell/octeontx2/nic/otx2_common.c index 87d5776e3b88..7510a918d942 100644 --- a/drivers/net/ethernet/marvell/octeontx2/nic/otx2_common.c +++ b/drivers/net/ethernet/marvell/octeontx2/nic/otx2_common.c @@ -1837,6 +1837,10 @@ u16 otx2_get_max_mtu(struct otx2_nic *pfvf) if (!rc) { rsp = (struct nix_hw_info *) otx2_mbox_get_rsp(&pfvf->mbox.mbox, 0, &req->hdr); + if (IS_ERR(rsp)) { + rc = PTR_ERR(rsp); + goto out; + } /* HW counts VLAN insertion bytes (8 for double tag) * irrespective of whether SQE is requesting to insert VLAN